Locomotive center plate



May 2o, 1930.

H. K. HARWICK LOCOMOTIVE CENTER PLATE Filed April 2, 1929 PatenteclvMay 20, 1930 HENRY ii.V HARWrcK, or" DARBY, PENNSYLVANIA y" LoCoMoTIVE CENTER PLATE y Application flied. iipiii 2,

My invention relates' to certain improvements in securing a center bearing to an integral frarne of a locomotive.

Oneobject of the invention is to'so design the center bearing structure that it will rest againstthe upper web of the main frame f which is reinforced by the cylinder structure when said cylinder structure is directly above the center'bearing. A

yAnother object of the invention is to so design the main frame that the center bear-` ingy and cylinder structure, can be readily secured to the main frame without recourse to difficult structural features.

In the accompanying drawings: Fig. 1 is a cross-sectional view of the main frame of a locomotive made in accordance with my` invention, showing the cylinder structure and the center bearing in position; Fig. 2 is a sectional plan view, on the line 2-2, Fig. A1, of that portion of the engine frame to which the center `beaiingplate is attached; f y 1 Fig. 3 is a transverse sectional view on the line 3.-3, Fig. 2;

Fig. 1 is a sectional viewlillustratin'g a modification of the invention; and Fig; 5 is a View showing myvinvention ap- A plied to a locomotive having lside frames and a connecting bed frame. Y

R ferring to the drawings, 1 is the main frame of a locomotive, in the present instan ce n being an integral casting, which extends the full length ofthe locomotive, but the 'frame' may be made inv sections without departing from te main features of the invention.

2 is the cylinder structure which is sho-wn frame of a locomotive, in the'present instance but it will be understood that it may be made in two parts bolted together in the ordinary Vmanner ify desired. In the cylinder structure 2 are the cylinders 3 and valve chests 1,

and 5 is a saddle on .which the boiler rests.

EXtending from one cylinder to the vother is a horizontal web 5a, depending from which are the vertical flanges 6. Thecylinder struc ture lits yover the frame 1 as clearly shown in Fig. 1, and is secured thereto by bolts 7 which pass through the verticalf'side memas clearly shown in th'edrawings.A

192e@ serial No. 351,947.

6 of the cylinder` structure.

The bottom of the frame has a web 9 which bers 8 of the frame 1 through ythe flanges projects from the lower end of the side menibers 8 of the frame,'leaving an opening' 10 through which the bolts 7 are passed when' the parts are assembled and secured'together.

Projecting from each web' 9 are lugs V11, i

Y and from the cross-members 12, which are a' continuationofthe webs 9, extend lugs 13.

bearing 16Vis made as shown in F ig. 2, and is eXten'ded'so as to pass under the lugsll and j 13 in the presentinstance, and vertical bolts l'securethe centery bearing plateto the lugs,

The center bearing structure 16 extends into the locomotive frame and the upper portion 17 vof the structure bears against the underside of the upper web ofthe main frame, which in turn is in vcontact with the cylinder sti-iid ture, making a very substantial'support for the centerbearing structure. s The interior of the center bearing structure is preferably provided with vertical reinforcing ribs 25,"

and on *theV outside Y,are reinforcing rribs 18. Secured tothe lower portion of said ylr'xeaiiing structure is a'wear plate 19 which is secured*VV to the center -bearingstructure by vertical ,bolts V20. 'Y ,n 21 isA the upper portion ofa-tijuck center bearing forming part of the bolster of the truck. T his truck center bearing has a flange 22 within which is located the enginey frame center bearing disl; lp19, and between 'these two bearings are liners 23'of the usual type.kr

co` vThe center bearingplate 14' of the centerVv Y.

A king bolt 24tis shown dotted lines in' y Fig. 3.

Y In Fig. 4 Ihhave .shown'thelocomotive 'frame 1n having upturned'lugs 11a, and the center structure 16a is also provided with upturned flanges 26, and transverse bolts extend through openings in the two flanges and sefrarne. In this v'figure the vcenter bearing castingis extended at 19a to form an integral wear plate,r Preferably surrounding this depending portion v19a vis a wear collar27 which is shrunk upon or welded to said portion.-

By making the main frame, the cylinder cure the center bearing structure to the inain structure and the center bearing structure in the manner shown,V a very firm support @is `provided-for the centerbearing structure,` and the load on the engine truckf is trans-` mitted directlyv from the cylinders 'the upper web of the frame to the center bearing structure and to the bolster, making through *avery substantialarrangement of parts.,

I g In Fig. a modification is illustrated`,` in `whichordinary longitudinal side frames la are used to whichthe Cylinder structure7522*?V and theconnecting bedrame lb are secured by bolts 7 a; lThe center bea-ring structure 16? extends into thev bed frame v1b vand Y rests against the underside of the upper web 17?,

vplate securedto the underside of the center bearing; and means for securing the wear which is reinforced bythe cylinder saddles.

i e In this ligure the Vsaddle is shown asa twopart saddle.` The flanged-iside portions 28,. of thecenter bearing fitneatly inthe YbedA frame 20111, asshown, and upright lugs 29 are bolted vat each Yend to the Vbed frame. f y

Y havingf an upper web;xa cylinder. saddle mounted thereon; and-a center bearing structureextending into the frame and resting against the upperrwebrof saidfraine.V A

The combination of an integral locoinotive` frame having 'side Vmembers and' anV upper web ;'fa center bearing structure mounted within the frame and resting against the underside of theweb; means for securing' j the center bearing structure tothe'frame.

. 3. 4The combination ofa locomotive :traine cylinder saddle mounted on the frame' andV` having upper and lowerifwebs; anda center bearing structure ,extending into the frame having side'nieinbers and upper `and lower webs; a large opening in the lower web; lugs lower edgeunderlapping the lugs; kand vere, i

tical bolts securing the plate to the lugs.Vv

7. The combination oi' a-locomotiveframe havingzside members an d. an integral upper web and an integral lower web; acenter'bearing structure mounted in theirame and rest; c

. inn,` against the underside of the Vupper web a plate secured Yto the lower web; a wear plate to the center 'bearing'structu'rel 8. |The combination inA a lbcomotivmof a'V saddle extending over the frame; and a'cen;

frame havingan upper `web; a cylinder ter bearing structurey eXten'ding` into the frame and bearing against the` upper Vweb. of said frame, said centerV bearingstructure being-secured to the frame'.V

9.- The combination Vin a traine having an upper web;` anda center lbearing structure ttingthe frame, the liuplocomotive, of ya perrend ofthe structure resting againsttheV web of theiframe.

HENRY 5K. iiiinwioK;

and resting against the upper Vweband h av-l ing a plate secured -to the lower webs.

4.The combination of an integral locomo- 'tive yiframe ,having side members -an upper4V web and inwardly extending lower webs; a

havingdepending flanges fitting/ the sides (of through the anges of the cylinder structure,

the locomotive fraineptransverse bolts eX-l tending through the sides of the frame and thetrame being open on its underside so that access may be had to said bolts; and a center at' the lower portionV of. theV center'bearing I Vthe lower inwardly projecting webs of the frame. i

bearing structure mounted within' the frame. andresting against the upper 'web thereof andVv securedv to the lower vportion of Vsaid fram Y f f Y 5. The combination'ofan integral locomovtive'frame havinU side members anu per web extendingfroin'one side to theV other;

websV projecting inwardly of Ythe lower por-. tion of the side members of the frame acenter bearing structure having'` a cylindrical central portion y,extending into the frame and resting against .the upperweb; and ai plate iin`r strueture, and' having projections securedto Y 6i The combination lof an *integralV Vtrarne 

